Fauning-mill



D. GLOW.

Fanning Mill. v

No, 4,582. Patented June 16, 1846.

N. PETER5 malnnm nu. Washmgon, u. c.

U TED STATES PATENT OFFICE.

DANIEL GLOW, OF PORT BYRON, NEW YORK.

FANNING-MILL.

Specification of Letters Patent No. 4,582, dated June 16, 1846.

To all whom it may concern Be it known that I, DANIEL CLoW, of PortByron, in the county of Cayuga and State of New York, have invented andadded sundry improvements to fanningmills, by the aid of which grain ofdifferent kinds can be thoroughly cleaned and separated from everyforeign substance.

I denominate my invention Clows combined rotary and vibrating fanningmill, and I do hereby declare the following to be a full and exactdescription of the same, reference being had to the accompanyingdrawings, making a part of the specification.

Figure 1, is a vertical longitudinal section through the center of myimproved fanning mill; Fig. 2, is aside elevation of the same; Fig. 3,is a perspective elevation of the vibrating shoe, containing thescreens; Fig. 4, is a perspective elevation of one of the sides of avibrating shoe, detached, constructed in a different manner.

The same letters refer to corresponding parts in all the figures.

The supporting frame of my improved fanning mill, is constructed in theusual manner.

My first improvement consists in giving the face of the wings a, a, ofthe fan, a concave form, for the purpose of adding to the strength ofthe blast, without increasing the revolutions of the fan. 5, b, are thearms, and 0, is the shaft of the fan.

My second improvement is the introduction of a regulator J, between thefan, and the vibrating shoe B, for the purpose of guiding and directingthe current of wind from the fan, on to whichever screen in thevibrating shoe that may be desired in cleaning difierent kinds of seedsor grains. The whole blast may be thrown on to the upper, or on to thelower screen, or the greater portion on to one and the remainder on tothe other. The regulator 71, is constructed of a plank, having its edgesbeveled to a point. is, is the shaft or journal on which the regulatoris vibrated. Z, is a lever for moving and indicating the position ofthe. regulator j.

My third improvement consists in the manner of constructing the shoe B,and securing the screens 1, 2, 3, 4, in the same, in such a manner thattheir position can be easily adjusted. I generally construct the sidesof the shoe of metallic plates, and connect them to each other by rods0, o, and p,

p; on one end of the rods 10, p, I place screw nuts 9, 9. To the innersides of the shoe I secure adjustable metallic groove plates 8, s, byrivets 1", 7', passing through their centers; the groove plates 8,, 8,receive the screws 1, 2, 3, 4, which are firmly fastened in any desiredposition by the action of the screw nuts 9, on the ends of the rods 39,p, forcing the sides of the shoe against them. By this arrangement thescreens can be placed in a horizontal position, or at any angle ofinclination that may be desired, to suit the different kinds of seeds orgrains to be cleaned. WVhen I construct the sides of the shoe of wood, Imake the grooves for the reception of the screens of the formrepresented in Fig. 4, of the accompanying drawings, viz., at theircenters they closely embrace the sides of the frames of the screws, andare enlarged each way from this point to their ends; by which form I amenabled to place the screws in any position desired, and firmly securethem by means of screw bolts p, p, as in the other modification of theshoe, with metallic sides.

My fourth improvement consists in placing a double rotary cylindricalscreen in the fanning mill, under the shoe B, extending in an incliningposition longitudinally from rear to front. The double rotary screenconsists of two cylindrical screens C and D, placed concentrically theone within the other, secured to annular heads 6, t; which heads aresecured to a shaft m, by the arms n, w. The grain is first acted upon bythe vibrating screens 1, 2, 3, 4, in the usual manner, and from these itis conducted into the rear or highest end of the inner rotary screen D.The inner screen D, is coarse, and the outer screen C, is of finetexture. The meshes in the inner screen D, are of such a size that theywill allow the grains of wheat or rye to pass through them, on to theouter screen C and retain every coarser substance. The meshes in theouter screen 0, are just fine enough to retain the kernels of wheat orrye, and allow the cockle and every smaller substance to pass throughthem as the screen is revolved. The rotary motion of the double screensand their inclined position, carries the grain forward on the screen Cand discharges the same through the enlarged meshes or openings at itsfront end, in the front side of the division board H, thoroughly cleanedand separated from every foreign substance. The same motion carryingforward the coarser substances in the inner screen D, and dischargesthem into the spout 2', which conducts them to the rear of the divisionboard I-I, under the mill. The double cylindrical screen is revolved bya bevel cog wheel 6 on a horizontal shaft at, working into a bevel wheelh, on the shaft m; the shaft cl, is driven by a band 6, connecting thepulley f, on the same, with the pulley g, on the main driving shaft E.

0 is a nut on the shaft m, for stretching the double screen C, D.

11 is a crank on the driving shaft E. i

F, is a cog wheel on the driving shaft E, working into and communicatingmotion to the cog wheel Z, on the fan shaft 0.

o, is a crank on the fan shaft 0, which communicates a vibratorymovement to the shoe B, through the medium of the connecting rod w, andelbow w, constructed in the usual manner.

Z, is a lever for operating the regulator j, and indicating itsposition.

b, is a guide board passing across the rear end of the mill, sliding ingrooves g, in the sides of the mill.

The grain after being acted upon while passing through and over thevibrating screens 1, 2, 3, 4, in the shoe B, in the usual manner, isdischarged from the screen 4,

into the space between the cross board 71/, and the guide board 6', andpasses through the aperture a, in' the cross board 72/, over the spoutd, intothe cylindrical screen D. On the rear annular head t, of thedouble screen cylindrical there is a flange u, pro jecting inward, whichprevents the grain from falling out at the rear end of the same. When itis not necessary to pass the grain through the double cylindricalscreen, the vibrating screen 4, is inclined forward, which throws thegrain on to the apron G, which conducts it to the front of the mill.

Having thus fully described the construction and operation of myimprovements to the fanning mill, what I claim therein as new and desireto secure by Letters Patent, 1s

The adjustable groove plates 8, s, for con fining the screens tothesides of the shoe B, and in combination therewith, the manner ofsecuring the screens firmly in any desired position by the rods 72, p,and screw nuts 9, g, substantially in themanner and for the purposeherein set forth.

DANIEL oLow.

Witnesses:

Z. G. RoBBINs, J. W. THAYER.

